Sanitary washing device

Abstract

The invention provides a sanitary washing device which enables a nozzle unit to stably advance and retreat. The sanitary washing device is characterized by being provided with: a nozzle unit that moves forward and backward between a toilet and a case; and a support portion that slidably supports the nozzle unit, the nozzle unit having a nozzle cover that bends so as to protrude upward and advances and retreats along an arcuate track, the support portion having: a groove portion that extends in the advancing and retreating direction of the nozzle unit; and a guide rail portion extending in the advancing and retreating direction of the nozzle unit at a position different from the groove portion. The nozzle unit has: a protruding portion held in the groove portion so as to be sandwiched in the vertical direction and in line contact with the groove portion; and a recessed portion held so as to sandwich the guide rail portion from the vertical direction.

Description

Technical Field

[0001] Aspects of the present invention generally relate to a sanitary washing device. Background Art

[0002] There is known a sanitary washing device including a nozzle that enters into a toilet bowl when performing private washing (Patent Document 1).

[0003] Patent Literature Patent Document 1: Japanese Patent No. 6551717 Summary of the invention

[0004] The nozzle slides relative to the support portion that supports the nozzle, thereby entering the toilet bowl. If the nozzle or the support portion is worn due to the forward and backward movement of the nozzle, the nozzle may not be able to move forward and backward stably.

[0005] The present invention has been made based on the recognition of such a problem, and the technical problem to be solved is to provide a sanitary washing device that can stably move a nozzle forward and backward.

[0006] The first invention is a sanitary washing device, characterized in that it comprises: a nozzle unit that moves forward and backward between a toilet bowl and a shell; and a support portion that slidably supports the nozzle unit, the nozzle unit having a nozzle cover that is bent in a manner that protrudes upward and moves forward and backward along an arc-shaped track, the support portion having: a groove portion extending in the forward and backward direction of the nozzle unit; and a guide rail portion extending in the forward and backward direction of the nozzle unit at a position different from the groove portion, the nozzle unit having: a protrusion that is held in the groove portion in a manner that is clamped from the top and bottom directions and is in linear contact with the groove portion; and a recessed portion that is held in a manner that clamps the guide rail portion from the top and bottom directions.

[0007] According to the sanitary washing device, the nozzle unit has a nozzle cover that is bent in a manner that protrudes upward and moves forward and backward along an arc-shaped track. As a result, the height dimension of the shell can be reduced as much as possible, thereby improving the appearance design of the sanitary washing device. In addition, the guide rail portion and the recessed portion, as well as the groove portion and the protruding portion, are engaged in a manner that is clamped in the up and down directions. At this time, since the protruding portion is in line contact with the groove portion, the contact area with the groove portion is minimized. As a result, even when the support portion and the nozzle unit slide repeatedly, the jitter due to wear and the deviation of the water spouting point can be suppressed. Thus, the strength of the support portion and the nozzle unit can be ensured, and at the same time, the nozzle unit can be stably moved forward and backward.

[0008] A second invention is a sanitary washing device according to the first invention, wherein the protrusion is provided on one side of the nozzle unit in the left-right direction, and the recess is provided on the other side of the nozzle unit in the left-right direction.

[0009] According to this sanitary washing device, the protrusion and the recess of the nozzle unit can be effectively engaged with the groove and the rail of the support portion, and as a result, the nozzle unit can be stably moved forward and backward.

[0010] A third invention is the sanitary washing device according to the first or second invention, wherein the protrusion is provided above the recess.

[0011] According to this sanitary washing device, it is possible to suppress excessive application of the weight of the nozzle unit or the load when the nozzle unit moves forward and backward to the protruding portion.

[0012] A fourth invention is a sanitary washing device according to the first or second invention, wherein the recessed portion has a convex portion that contacts the rail portion.

[0013] According to this sanitary washing device, it is possible to suppress the recessed portion from contacting multiple locations of the rail portion and causing wear, thereby suppressing the vibration of the nozzle unit and the deviation of the water discharge point.

[0014] The fifth invention is a sanitary washing device as follows, characterized in that, in the fourth invention, the protrusion has: an upper protrusion opposite to the upper side of the guide rail portion; and a lower protrusion opposite to the lower side of the guide rail portion, and the protruding dimension of the upper protrusion is larger than the protruding dimension of the lower protrusion.

[0015] The upper convex part is more easily worn than the lower convex part due to the arc-shaped track of the nozzle unit. According to the sanitary washing device, the life of the nozzle unit can be improved by making the protrusion dimension H1 of the upper convex part of the concave part larger than the protrusion dimension H2 of the lower convex part. In addition, the vibration of the nozzle unit and the deviation of the water discharge point can be suppressed for a long time.

[0016] According to an aspect of the present invention, there is provided a sanitary washing device capable of stably operating a nozzle unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a perspective view showing a toilet device including the sanitary washing device according to the embodiment. Figure 2 This is a block diagram showing the main structure of the sanitary washing device. Figure 3 This is a cross-sectional view of the local cleaning device inside the shell viewed from the side. Figure 4 It is a side view showing a state where the cover portion is removed from the main body portion of the support portion. Figure 5 It means from Figure 4 A side view of the support section with the gears and belt removed. Figure 6 Observed from the direction of arrow AA Figure 5 A cross-sectional view of a local cleaning device in FIG. Figure 7 This is a stereoscopic view of the local cleaning device as viewed from the rear. Figure 8 This is a three-dimensional view of the support portion viewed from an oblique rear side. Fig. 9 It is a side view showing the nozzle unit as a single body. Fig.10 This is a rear view of the nozzle unit as seen from the rear. Fig.11 It is a magnified representation Fig. 9 Side view of the protrusion and retaining portion in FIG. Explanation of symbols 10-shell; 11-shell plate; 12-shell cover; 12a-cover; 20-toilet seat; 25-toilet cover; 30-local cleaning device; 40-support; 41-main body; 42-bottom; 43-longitudinal part; 44-nozzle cleaning part; 45-groove; 45a-lower part; 45b-upper part; 46-guide rail; 46a-upper part; 46b-lower part; 48-cover; 50-nozzle motor; 50a-rotor Rotating shaft; 52-gear; 53-flexible rack; 60-nozzle unit; 70-flow regulating unit; 71-flow regulating unit; 72-flow path switching unit; 73-box; 73a-protruding part; 73b-recessed part; 73b1-upper part; 73b2-lower part; 73b3-inner part; 73c-engaging part; 74-convex part; 74a-upper convex part; 74b-lower convex part; 75-surface cleaning flow path; 80 - nozzle body; 81- buttocks washing flow path; 81a- buttocks washing water outlet; 82- gentle washing flow path; 82a- gentle washing water outlet; 83- lower body washing flow path; 83a- lower body washing water outlet; 84- first basin spray flow path; 84a- first outlet; 85- second basin spray flow path; 85a- second outlet; 90- nozzle cover; 90a- hole; 90b- cutout; 100- sanitary washing Device; 110-pipeline; 120-solenoid valve; 121-pressure regulating valve; 122-check valve; 123-heat exchanger unit; 124-flow sensor; 125-vacuum breaker; 126-electrolyzer unit; 127-pressure modulation unit; 130-control unit; 135-power circuit; 140-operating unit; 150-seat detection sensor; 200-toilet; 300-flushing device; 500-water supply source. DETAILED DESCRIPTION

[0018] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In each of the drawings, the same components are denoted by the same reference numerals and detailed descriptions thereof are appropriately omitted. Figure 1 It is a perspective view showing a toilet device including the sanitary washing device according to the embodiment. like Figure 1 As shown, the toilet device 300 according to the embodiment includes a sanitary washing device 100 and a western-style toilet (hereinafter, simply referred to as a "toilet" for convenience of explanation) 200. The sanitary washing device 100 is provided on the toilet 200. The sanitary washing device 100 includes a local washing device 30 for washing the local part of a user sitting on the toilet seat 20.

[0019] The shell 10 has a shell plate 11 and a shell cover 12. The shell plate 11 constitutes the bottom of the shell 10. The shell plate 11 is placed on the rear of the toilet 200. The shell cover 12 is set on the shell plate 11 and covers the upper part of the shell plate 11. The toilet seat 20 and the toilet cover 25 are rotatably supported on the shell cover 12. In addition, in front of the nozzle unit 60 described later, the shell cover 12 has a cover part 12a that can be opened and closed. When the nozzle unit 60 enters the toilet 200, the cover part 12a is pressed and opened.

[0020] The housing 10 accommodates the local washing device 30 in the space surrounded by the housing plate 11 and the housing cover 12. In addition, the housing 10 accommodates functional parts such as an opening and closing unit for controlling the opening and closing of the toilet seat 20 and the toilet cover 25, a toilet seat heating unit for controlling the temperature of the toilet seat 20, and a communication unit for communicating with the operation unit 140 and the like.

[0021] In this application specification, Figure 1 As shown, “up”, “down”, “front”, “back”, “right”, and “left” are directions viewed from a user who sits on the toilet seat 20 with his back to the toilet cover 25 .

[0022] Figure 2 This is a block diagram showing the main structure of the sanitary washing device. Figure 2 , the main structures of the water system and the electrical system of the sanitary washing device 100 are shown at the same time.

[0023] like Figure 2 As shown, the sanitary washing device 100 includes a pipe 110. The pipe 110 extends from a water supply source 500 such as a water pipe or a water storage tank to the nozzle unit 60. The pipe 110 guides water supplied from the water supply source 500 to the nozzle unit 60.

[0024] A solenoid valve 120 is provided on the upstream side of the pipeline 110. The solenoid valve 120 is an openable and closable solenoid valve, and controls the supply of water according to a command from a control unit 130 provided inside the housing 10. In other words, the solenoid valve 120 opens and closes the pipeline 110. When the solenoid valve 120 is in an open state, water supplied from the water supply source 500 flows through the pipeline 110.

[0025] A pressure regulating valve 121 is provided downstream of the solenoid valve 120. When the water supply pressure is high, the pressure regulating valve 121 adjusts the pressure in the pipeline 110 to a predetermined pressure range. A check valve 122 is provided downstream of the pressure regulating valve 121. When the pressure in the pipeline 110 decreases, the check valve 122 prevents water from flowing back to the upstream side of the check valve 122.

[0026] A heat exchanger unit 123 (heating unit) is provided downstream of the check valve 122. The heat exchanger unit 123 includes a heater, and heats water supplied from the water supply source 500 to a predetermined temperature. That is, the heat exchanger unit 123 generates warm water.

[0027] The heat exchanger unit 123 is an instantaneous heating type (instantaneous type) heat exchanger using, for example, a ceramic heater. The instantaneous heating type heat exchanger can heat water to a specified temperature in a shorter time than a hot water storage heating type heat exchanger using a hot water storage tank. In addition, the heat exchanger unit 123 is not limited to an instantaneous heating type heat exchanger, but may also be a hot water storage heating type heat exchanger. In addition, the heating unit is not limited to a heat exchanger, but may also be a heating unit using other heating methods, such as a heating unit using microwave heating.

[0028] The heat exchanger unit 123 is connected to the control unit 130. The control unit 130 controls the heat exchanger unit 123 according to the operation of the operation unit 140 by the user, for example, so as to increase the temperature of the water to the temperature set by the operation unit 140.

[0029] A flow sensor 124 is provided downstream of the heat exchanger unit 123. The flow sensor 124 detects the flow rate of water discharged from the heat exchanger unit 123. That is, the flow sensor 124 detects the flow rate of water flowing in the pipe 110. The flow sensor 124 is connected to the control unit 130. The flow sensor 124 inputs the detection result of the flow rate to the control unit 130.

[0030] A vacuum breaker (VB) 125 is provided downstream of the flow sensor 124. The vacuum breaker 125 includes, for example, a flow path for flowing water, an air intake port for introducing air into the flow path, and a valve structure for opening and closing the air intake port. For example, when water flows in the flow path, the valve structure blocks the air intake port, and when the water stops flowing, the air intake port is opened to introduce air into the flow path. That is, when no water flows in the pipeline 110, the vacuum breaker 125 introduces air into the pipeline 110. The valve structure uses, for example, a float valve.

[0031] The vacuum breaker 125 introduces air into the pipe 110, thereby, for example, promoting drainage of a portion that is closer to the downstream than the vacuum breaker 125. The vacuum breaker 125, for example, promotes drainage of the nozzle unit 60. In this way, the vacuum breaker 125 discharges water in the nozzle unit 60 and introduces air into the nozzle unit 60, thereby, for example, suppressing backflow of washing water in the nozzle unit 60 to the water supply source 500 (upstream water) side.

[0032] An electrolytic cell unit 126 is provided downstream of the vacuum breaker 125. The electrolytic cell unit 126 electrolyzes tap water flowing inside, thereby generating liquid (functional water) containing hypochlorous acid from the tap water. The electrolytic cell unit 126 is connected to the control unit 130. The electrolytic cell unit 126 generates functional water under the control of the control unit 130.

[0033] The functional water generated in the electrolytic cell unit 126 may be, for example, a solution containing metal ions such as silver ions or copper ions. Alternatively, the functional water generated in the electrolytic cell unit 126 may be a solution containing electrolytic chlorine or ozone. Alternatively, the functional water generated in the electrolytic cell unit 126 may be acidic water or alkaline water.

[0034] A pressure modulator 127 is provided downstream of the electrolytic cell unit 126. The pressure modulator 127 makes the water flow in the pipeline 110 pulse or accelerate, and makes the water ejected from the buttocks wash spouting port 81a, the gentle wash spouting port 82a, the lower body wash spouting port 83a of the nozzle body 80 or the spouting portion of the nozzle cleaning portion 44 pulse. That is, the pressure modulator 127 changes the flow state of the water flowing in the pipeline 110. The pressure modulator 127 is connected to the control unit 130. The pressure modulator 127 changes the flow state of the water according to the control of the control unit 130. The pressure modulator 127 changes the pressure of the water in the pipeline 110.

[0035] A flow regulating unit 70 is provided downstream of the pressure modulation unit 127. The flow regulating unit 70 has a flow regulating unit 71 and a flow path switching unit 72. The flow regulating unit 71 adjusts the water potential (flow rate). A flow path switching unit 72 is provided downstream of the flow regulating unit 71. The flow path switching unit 72 opens and closes and switches the water supply to the nozzle body 80 and the nozzle cleaning unit 44. The flow regulating unit 71 and the flow path switching unit 72 may also be provided separately. The flow regulating unit 71 and the flow path switching unit 72 are connected to the control unit 130. The operation of the flow regulating unit 71 and the flow path switching unit 72 is controlled by the control unit 130.

[0036] The flow regulating unit 70 constitutes a part of the nozzle unit 60. The flow regulating unit 70 is connected to the rear of the nozzle body 80. The flow regulating unit 70 has a box 73 that accommodates the flow regulating portion 71 and the flow path switching portion 72. In addition, the box 73 is provided with a protrusion 73a and a recess 73b that are slidably held by the support portion 40 described later. The protrusion 73a and the recess 73b will be described later.

[0037] The buttocks washing flow path 81, the gentle washing flow path 82, the lower body washing flow path 83, the first basin spray flow path 84, the second basin spray flow path 85, and the surface washing flow path 75 are provided downstream of the flow path switching portion 72. The buttocks washing flow path 81, the gentle washing flow path 82, the lower body washing flow path 83, the first basin spray flow path 84, and the second basin spray flow path 85 are provided inside the nozzle body 80. The surface washing flow path 75 is a pipeline (not shown) connecting the flow path switching portion 72 and the nozzle washing portion 44.

[0038] The buttocks washing flow path 81 causes water or functional water generated in the electrolytic cell unit 126 to flow from the flow path switching section 72 to the buttocks washing water spouting port 81a. The gentle washing flow path 82 causes water or functional water generated in the electrolytic cell unit 126 to flow from the flow path switching section 72 to the gentle washing water spouting port 82a. The lower body washing flow path 83 causes water or functional water generated in the electrolytic cell unit 126 to flow from the flow path switching section 72 to the lower body washing water spouting port 83a. The first basin spray flow path 84 causes water or functional water generated in the electrolytic cell unit 126 to flow from the flow path switching section 72 to the first spray port 84a. The second basin spray flow path 85 causes water or functional water generated in the electrolytic cell unit 126 to flow from the flow path switching section 72 to the second spray port 85a. In addition, the surface washing flow path 75 causes water or functional water generated in the electrolytic cell unit 126 to flow from the flow path switching section 72 to the nozzle washing section 44.

[0039] The control unit 130 controls the flow path switching unit 72, thereby switching the opening and closing of each flow path of the buttocks washing flow path 81, the gentle washing flow path 82, the lower body washing flow path 83, the first basin spray flow path 84, the second basin spray flow path 85, and the surface washing flow path 75. In this way, the flow path switching unit 72 switches the buttocks washing water spouting port 81a, the gentle washing water spouting port 82a, the lower body washing water spouting port 83a, the nozzle washing unit 44, and the first and second spraying ports 84a, 85a to a state connected to the pipeline 110 and a state not connected to the pipeline 110.

[0040] The control unit 130 is supplied with power from the power supply circuit 135, and the control unit 130 controls the operation of the solenoid valve 120, the heat exchanger unit 123, the electrolytic cell unit 126, the pressure modulation unit 127, the flow rate adjustment unit 71, the flow path switching unit 72, the nozzle motor 50, etc., based on the signal from the seating detection sensor 150, the flow rate sensor 124, or the operation unit 140, etc. Thus, the control unit 130 controls the operation of the nozzle unit 60.

[0041] Next, the private part cleaning device 30 provided inside the housing 10 will be described. Figure 3 This is a cross-sectional view of the local cleaning device inside the shell viewed from the side. Figure 4 It is a side view showing a state where the cover portion is removed from the main body portion of the support portion. Figure 5 It means from Figure 4 A side view of the support section with the gears and belt removed. Figure 6 Observed from the direction of arrow AA Figure 5 A cross-sectional view of a local cleaning device in FIG. Figure 7 This is a stereoscopic view of the local cleaning device as viewed from the rear. Figure 8 This is a three-dimensional view of the support portion viewed from an oblique rear side. Fig. 9 It is a side view showing the nozzle unit as a single body. Fig.10 This is a rear view of the nozzle unit as seen from the rear. Fig.11 It is a magnified representation Fig. 9 Side view of the protrusion and retaining portion in FIG.

[0042] The local cleaning device 30 cleans the local area of ​​the user sitting on the toilet seat 20. In addition, in this example, the local cleaning device 30 also has a function of spraying water or functional water into the toilet 200 to suppress the adhesion of dirt into the toilet 200. This function can be set as needed. In addition, the local cleaning device 30 includes: a support part 40, which is set on the shell plate 11 of the shell 10; and a nozzle unit 60, which is slidably supported on the support part 40.

[0043] The support part 40 is located below the nozzle unit 60 and supports the nozzle unit 60 from below. The support part 40 includes a main body 41 and a cover 48 covering the side of the main body 41. Figure 8 As shown, the main body 41 has: a bottom 42 extending in the front-to-back direction; a longitudinal portion 43 extending upward from the bottom 42; and a nozzle cleaning portion 44 located at the front end side of the bottom 42 and the longitudinal portion 43. The bottom 42 and the longitudinal portion 43 are inclined downward from the rear toward the front. In addition, corresponding to the shape of the nozzle cover 90, the bottom 42 and the longitudinal portion 43 are curved in a convex upward manner.

[0044] The nozzle cleaning part 44 covers the outer periphery of the nozzle cover 90. The nozzle cleaning part 44 cleans the outer peripheral surface (main body) of the nozzle cover 90 by ejecting functional water or water from a water discharge part, for example.

[0045] The support portion 40 includes a groove portion 45 extending in the forward and backward direction of the nozzle unit 60, and a guide rail portion 46 extending in the forward and backward direction of the nozzle unit 60 at a position different from the groove portion 45. The groove portion 45 and the guide rail portion 46 serve as a guide for the nozzle unit 60 when the nozzle unit 60 is moved forward and backward between the inside of the housing 10 and the inside of the toilet 200.

[0046] The groove 45 passes through the longitudinal portion 43 in the thickness direction (left-right direction). The groove 45 has a lower portion 45a that is continuous with the bottom portion 42 and an upper portion 45b that is opposite to the lower portion 45a in the up-down direction. The groove 45 is curved so as to protrude upward and extend in the front-back direction in accordance with the shape of the nozzle cover 90. The protrusion 73a of the nozzle unit 60 described later is held in the groove 45.

[0047] A guide rail portion 46 is provided to protrude from the bottom portion 42 in the left-right direction. The guide rail portion 46 is formed in a flat plate shape extending in the front-rear direction. The upper surface 46a and the lower surface 46b of the guide rail portion 46 are curved in a manner convex upward and extend in the front-rear direction in accordance with the shape of the nozzle cover 90. The recessed portion 73b of the nozzle unit 60 described later is held by the guide rail portion 46. Since the groove portion 45 and the guide rail portion 46 are curved in the front-rear direction, the nozzle unit 60 moves forward and backward along an arc-shaped track.

[0048] The nozzle motor 50 is provided below the bottom portion 42. The nozzle motor 50 serves as a driving unit for moving the nozzle unit 60 forward and backward. The nozzle motor 50 is connected to the control unit 130. When the operation unit 140 is operated, the nozzle motor 50 operates according to the operation instruction.

[0049] like Figure 4 As shown, the gear 52 is located on the side of the main body 41 and is mounted on the rotating shaft 50a of the nozzle motor 50. The gear 52 rotates due to the operation of the nozzle motor 50. The flexible rack 53 is located around the gear 52 and meshes with the gear 52. The flexible rack 53 is a rack that converts the rotational motion of the gear 52 into a linear motion. The flexible rack 53 is engaged with the engaging portion 73c provided on the box 73 of the flow regulating unit 70.

[0050] When gear 52 is Figure 4 In the state shown, when the gear 52 rotates counterclockwise, the flexible rack 53 moves forward. The flexible rack 53 presses the engaging portion 73c forward, thereby the nozzle unit 60 enters the toilet 200. On the other hand, when the gear 52 rotates clockwise, the flexible rack 53 moves backward. The flexible rack 53 presses the engaging portion 73c backward, thereby the nozzle unit 60 retreats into the housing 10.

[0051] The nozzle unit 60 includes a flow regulating unit 70, a nozzle body 80 located in front of the flow regulating unit 70, and a nozzle cover 90 covering the outer periphery of the nozzle body 80. The flow regulating unit 70 includes a flow regulating portion 71, a flow path switching portion 72, and a box 73 that accommodates the flow regulating portion 71 and the flow path switching portion 72.

[0052] The box 73 of the flow regulating unit 70 is mounted on the nozzle body 80. The nozzle cover 90 is mounted on the box 73 and the nozzle body 80. Thus, the flow regulating unit 70, the nozzle body 80 and the nozzle cover 90 are integrated, and the nozzle unit 60 slides in the front-rear direction relative to the support part 40.

[0053] The box 73 has a cylindrical protrusion 73a which is held in the groove 45 of the support portion 40 in a manner of being clamped from the top and bottom, and a recess 73b which is held in a manner of clamping the rail portion 46 of the support portion 40 from the top and bottom. Figure 5 , 6 As shown in FIG. 9 , the protrusion 73 a is provided at a position corresponding to the groove 45 of the support portion 40 . The recess 73 b is provided at a position corresponding to the guide rail 46 of the support portion 40 .

[0054] The protrusion 73a is held by being sandwiched between the lower surface 45a and the upper surface 45b of the groove 45. Thus, the protrusion 73a can slide stably in the groove 45. In addition, the protrusion 73a is formed in a cylindrical shape. Figure 6 As shown, the protrusion 73a is in linear contact with the lower portion 45a and the upper portion 45b of the groove portion 45 in the left-right direction. That is, since the protrusion 73a is formed in a cylindrical shape, the contact area with the groove portion 45 is minimized. As a result, since the wear of the protrusion 73a and the groove portion 45 can be reduced, the protrusion 73a can be made to slide stably in the groove portion 45. In addition, the protrusion 73a can also be formed in a quadrangular column shape. In this case, the corners of the quadrangular column shape of the protrusion 73a are in linear contact with the lower portion 45a and the upper portion 45b of the groove portion 45 in the left-right direction.

[0055] The recessed portion 73b is open to the left side (the guide rail portion 46 side). The recessed portion 73b has an upper portion 73b1, a lower portion 73b2 facing the upper portion 73b1 in the vertical direction, and an inner portion 73b3 connecting the upper portion 73b1 and the lower portion 73b2. The recessed portion 73b is held so as to sandwich the guide rail portion 46 in the vertical direction.

[0056] like Fig.10 As shown in FIG. 1 , the protrusion 73a is provided on one side (left side) of the left-right direction of the nozzle unit 60. That is, the protrusion 73a is provided on the left side of the nozzle unit 60. On the other hand, the recess 73b is provided on the other side (right side) of the left-right direction of the nozzle unit 60. The recess 73b is provided on the right side of the nozzle unit 60. In this example, the center ( Fig.10 The left side of the dotted line in the figure is one side, and the right side is the other side. Furthermore, the protrusion 73a and the groove 45 of the local cleaning device 30 can be arranged on the other side (right side) in the left-right direction, and the recess 73b and the guide rail 46 can be arranged on one side (left side) in the left-right direction.

[0057] By disposing the protrusion 73a and the recess 73b of the nozzle unit 60 at a distance from each other on both sides, the protrusion 73a and the groove 45 and the recess 73b and the rail 46 can be stably engaged with each other. Thus, the nozzle unit 60 can be stably moved forward and backward relative to the support 40.

[0058] The protrusion 73a has a lower rigidity than the recess 73b due to its shape. Figures 9 to 11 As shown in FIG. 1 , the protrusion 73a is provided at a position higher than the recess 73b. This can prevent the weight of the nozzle unit 60 or the load when the nozzle unit 60 moves forward and backward from being excessively applied to the protrusion 73a.

[0059] The recessed portion 73b has a convex portion 74 that contacts the rail portion 46. The convex portion 74 suppresses the occurrence of shaking between the recessed portion 73b and the rail portion 46. Since the convex portion 74 contacts the rail portion 46, the recessed portion 73b can stably slide on the rail portion 46. In addition, since the entry position of the nozzle unit 60 can be stabilized, the water discharge point of the water discharged from the nozzle body 80 can be stabilized.

[0060] like Fig.11 As shown, the convex portion 74 includes an upper convex portion 74a opposite to the upper surface 46a of the guide rail portion 46, and a lower convex portion 74b opposite to the lower surface 46b of the guide rail portion 46. The upper convex portion 74a has a convex curved surface at the bottom, and protrudes from the upper surface portion 73b1 of the recessed portion 73b to the lower surface portion 73b2. The lower convex portion 74b has a convex curved surface at the top, and protrudes from the lower surface portion 73b2 of the recessed portion 73b to the upper surface portion 73b1. The guide rail portion 46 is sandwiched between the upper convex portion 74a and the lower convex portion 74b of the recessed portion 73b.

[0061] When the nozzle unit 60 moves forward and backward, the upper convex portion 74a slides on the guide rail portion 46 due to the weight of the nozzle unit 60, rather than the lower convex portion 74b. Fig.11 As shown in FIG. 1 , the protrusion dimension H1 of the upper convex portion 74a is greater than the protrusion dimension H2 of the lower convex portion 74b. Thus, the life of the concave portion 73b can be increased. That is, even if the upper convex portion 74a is worn, the vibration of the nozzle unit 60 can be suppressed, and the water discharge point can be stabilized. In addition, the upper convex portion 74a and the lower convex portion 74b may have at least one concave portion 73b.

[0062] The engaging portion 73c is disposed above the protruding portion 73a. Figure 4 As shown, the flexible rack 53 is engaged with the engagement portion 73c. ​​The rotational force of the nozzle motor 50 is transmitted from the gear 52 to the engagement portion 73c via the flexible rack 53. The engagement portion 73c is moved in the front-rear direction by the flexible rack 53, so that the nozzle unit 60 moves forward and backward between the inside of the housing 10 and the inside of the toilet 200.

[0063] The nozzle body 80 is disposed at the front side of the flow regulating unit 70. When the nozzle unit 60 is stored in the housing 10, the top end of the nozzle body 80 is located inside the nozzle washing portion 44. Inside the nozzle body 80, a buttocks washing flow path 81, a gentle washing flow path 82, a lower body washing flow path 83, a first basin spray flow path 84, and a second basin spray flow path 85 are disposed. The water or functional water flowing through the flow regulating unit 70 flows to the buttocks washing flow path 81, the gentle washing flow path 82, the lower body washing flow path 83, the first basin spray flow path 84, the second basin spray flow path 85, and the surface washing flow path 75 due to the operation of the flow path switching portion 72.

[0064] A buttocks washing water spouting port 81a is provided at the top end of the buttocks washing flow path 81. A soft washing water spouting port 82a is provided at the top end of the soft washing flow path 82. A lower body washing water spouting port 83a is provided at the top end of the lower body washing flow path 83.

[0065] The nozzle body 80 sprays hot water from the buttocks washing spout 81a or the gentle washing spout 82a provided at the top thereof, and can wash the "buttocks" of the user sitting on the toilet seat 20. The gentle washing spout 82a spouts a softer water flow than the buttocks washing spout 81a. In addition, the nozzle body 80 sprays hot water from the lower body washing spout 83a provided at the top thereof, and can wash the female parts of the woman sitting on the toilet seat 20.

[0066] A first spray port 84a is provided at the top of the first basin spray flow path 84. A second spray port 85a is provided at the top of the second basin spray flow path 85. The first spray port 84a and the second spray port 85a are provided, for example, in front of the nozzle body 80. The first spray port 84a and the second spray port 85a spray water or functional water into the toilet 200. The first spray port 84a and the second spray port 85a spray water and functional water in different directions in the front-rear direction. The water or functional water sprayed into the toilet 200 from the first spray port 84a and the second spray port 85a suppresses the adhesion of dirt into the toilet 200.

[0067] The nozzle cover 90 covers the outside of the nozzle body 80. Fig. 9 As shown, the nozzle cover 90 is bent in a convex manner toward the upper side and moves forward and backward along an arc-shaped track. The nozzle cover 90 has: a hole portion 90a, which is connected to the buttocks washing water spouting port 81a, the gentle washing water spouting port 82a and the lower body washing water spouting port 83a respectively; and a cutout portion 90b, which exposes the first spray port 84a and the second spray port 85a.

[0068] According to the present embodiment, the nozzle unit 60 has a nozzle cover 90 that is curved in a convex manner toward the upper side and moves forward and backward along an arc-shaped track. Thus, the height dimension of the local washing device 30 can be reduced as much as possible. Thus, since the height dimension of the shell 10 can also be reduced as much as possible, the appearance design of the sanitary washing device 100 can be improved.

[0069] When the track of the nozzle unit 60 is formed into an arc shape, the nozzle unit 60 slides on the support portion 40 and the wear is greatly affected, and there is a possibility that the nozzle unit 60 may vibrate or the water discharge point may deviate.

[0070] Thus, the support portion 40 includes: a groove portion 45 extending in the forward and backward direction of the nozzle unit 60; and a rail portion 46 extending in the forward and backward direction of the nozzle unit 60 at a position different from the groove portion 45. Furthermore, the nozzle unit 60 includes: a cylindrical protrusion 73a held in the groove portion 45 in a manner of being clamped from the top and bottom; and a recessed portion 73b held in a manner of clamping the rail portion 46 from the top and bottom.

[0071] Here, for example, when both sides are formed into the protrusion 73a, if the rigidity of the protrusion 73a is not increased, it may not be possible to fully support the weight of the nozzle unit 60 and the load during sliding. Therefore, the nozzle unit 60 is held on the support part 40 with one side being the cylindrical protrusion 73a and the other side being the recessed part 73b.

[0072] The guide rail portion 46 and the recessed portion 73b, as well as the groove portion 45 and the protruding portion 73a, are engaged in a manner of being clamped in the up-down direction. In addition, by making the protruding portion 73a cylindrical, the contact area with the groove portion 45 is minimized. Thus, even when the support portion 40 and the nozzle unit 60 slide repeatedly, the local cleaning device 30 can suppress the jitter due to wear and the deviation of the water spouting point. Therefore, the strength of the support portion 40 and the nozzle unit 60 can be ensured, and the nozzle unit 60 can be stably moved forward and backward.

[0073] The protrusion 73a is provided on one side of the nozzle unit 60 in the left-right direction, and the recess 73b is provided on the other side of the nozzle unit 60 in the left-right direction. Thus, the support portion 40 and the nozzle unit 60 can be effectively engaged. As a result, the nozzle unit 60 can be stably moved forward and backward.

[0074] The protrusion 73a is provided above the recess 73b, so that the weight of the nozzle unit 60 or the load when the nozzle unit 60 moves forward and backward can be prevented from being excessively applied to the protrusion 73a.

[0075] In addition, the recessed portion 73b has the convex portion 74 that contacts the rail portion 46. This can prevent the recessed portion 73b from contacting multiple locations of the rail portion 46 and causing wear. Therefore, it is possible to prevent the nozzle unit 60 from shaking and the water discharge point from shifting.

[0076] At this time, the convex portion 74 has: an upper convex portion 74a opposite to the upper surface 46a of the guide rail portion 46; and a lower convex portion 74b opposite to the lower surface 46b of the guide rail portion 46. Moreover, the protrusion dimension H1 of the upper convex portion 74a is larger than the protrusion dimension H2 of the lower convex portion 74b. The upper convex portion 74a is more susceptible to wear than the lower convex portion 74b due to the arc-shaped track of the nozzle unit 60. By making the protrusion dimension H1 of the upper convex portion 74a of the recessed portion 73b larger than the protrusion dimension H2 of the lower convex portion 74b, the service life can be improved. In addition, the vibration of the nozzle unit 60 and the deviation of the water discharge point can be suppressed for a long time.

[0077] In the above-mentioned embodiment, the case where the protrusion 73a and the recess 73b are provided in the box 73 of the flow control unit 70 is described as an example. However, the form of the present invention is not limited to this, and for example, the protrusion and the recess may be provided in the nozzle cover or the nozzle body. It is sufficient as long as the protrusion and the recess are provided at any position of the nozzle unit.

[0078] The embodiment may further include the following configurations. Composition 1 A sanitary cleaning device, characterized in that: It has: a nozzle unit that moves forward and backward between the toilet bowl and the shell; and a supporting portion slidably supporting the nozzle unit, The nozzle unit includes a nozzle cover that is curved in a convex manner upward and moves forward and backward along an arc-shaped track. The support portion has: a groove portion extending in the advancing and retreating direction of the nozzle unit; and a guide rail portion extending in the advancing and retreating direction of the nozzle unit at a position different from the groove portion, The nozzle unit includes: a protrusion held by the groove portion in a manner of being sandwiched from the top and bottom and in line contact with the groove portion; and a recessed portion that is held so as to sandwich the guide rail portion from the top and bottom. Composition 2 The sanitary washing device described in configuration 1 is characterized in that: The protrusion is provided on one side of the nozzle unit in the left-right direction. The recessed portion is provided on the other side of the nozzle unit in the left-right direction. Composition 3 The sanitary washing device according to configuration 1 or 2 is characterized in that the protrusion is provided at a position higher than the recess. Composition 4 The sanitary washing device according to any one of configurations 1 to 3 is characterized in that the recessed portion has a raised portion that contacts the rail portion. Composition 5 The sanitary washing device described in configuration 4 is characterized in that: The convex portion has: an upper convex portion opposite to the upper surface of the guide rail portion; and a lower convex portion opposite to the lower surface of the guide rail portion, The protruding dimension of the upper protrusion is greater than the protruding dimension of the lower protrusion.

[0079] The above describes the embodiments of the present invention. However, the present invention is not limited to the above description. Regarding the aforementioned embodiments, as long as they have the characteristics of the present invention, inventions that are appropriately designed and modified by those skilled in the art are also included in the scope of the present invention. For example, the shape, size, material, configuration, etc. of each element possessed by a sanitary washing device, etc. are not limited to the exemplified contents, but can be appropriately changed. In addition, as long as it is technically feasible, the various elements possessed by the aforementioned embodiments can be combined, and the technology after these combinations is also included in the scope of the present invention as long as it contains the characteristics of the present invention.

Claims

1. A sanitary cleaning device, characterized in that: It has: a nozzle unit that moves forward and backward between the toilet bowl and the shell; and a supporting portion slidably supporting the nozzle unit, The nozzle unit includes a nozzle cover that is curved in a convex manner upward and moves forward and backward along an arc-shaped track. The support portion has: a groove portion extending in the advancing and retreating direction of the nozzle unit; and a guide rail portion extending in the advancing and retreating direction of the nozzle unit at a position different from the groove portion, The nozzle unit includes: a protrusion held by the groove portion in a manner of being sandwiched from the top and bottom and in line contact with the groove portion; and a recessed portion that is held so as to sandwich the guide rail portion from the top and bottom.

2. The sanitary washing device according to claim 1, characterized in that: The protrusion is provided on one side of the nozzle unit in the left-right direction. The recessed portion is provided on the other side of the nozzle unit in the left-right direction.

3. The sanitary washing device according to claim 1 or 2, characterized in that: The protrusion is provided at a position higher than the recess.

4. The sanitary washing device according to claim 1 or 2, characterized in that: The recessed portion has a raised portion that contacts the rail portion.

5. The sanitary washing device according to claim 4, characterized in that: The convex portion has: an upper convex portion opposite to the upper surface of the guide rail portion; and a lower convex portion opposite to the lower surface of the guide rail portion, The protruding dimension of the upper protrusion is greater than the protruding dimension of the lower protrusion.

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